With Commie Core, the teacher doesn't stand up and do any teaching. You hand out readings with some questions. The kids are in groups of 4 or so. They collectively (good Commie word!) work on their questions. One kid from each group may be called (depends on the lesson) on to present their group's findings to the other groups. They are basically teaching themselves from the readings. With most children reading at the 1 and 2 levels of 4 possible levels, it's anyone's guess what information they can extract from these readings. Oh, and mind you, there is a critical paper shortage chronically in schools, so xeroxing these readings will be difficult. Chalk and talk is strictly verboten! Must be child-centered lessons! They have no notes to take down, so they are not being trained to take notes for colleges courses. Many or most times, they are HANDED a sheet of pre-typed notes with a few blanks for them to fill in. There is little to no discussion of topics in the classroom, but lots of these "readings". The content of the readings can, as cited in other FR posts, be nibbling around the edges of Communism or at least nibbling away from the idea of democracy, such as "Which 2 rights of the Bill of Rights would you eliminate?"
Commie Core is the first step of a slippery slope of a national uniformity of thought-training. No more Kansas standards or Alabama standards as to what people in Kansas or Alabama think their kids should learn. No, it's "One ring shall rule them all" at the national level. The very diversity of approaches to problem-solving that made America great will be eliminated, as EVERYONE is learning the exact same thing taught the exact same way.
http://whatiscommoncore.wordpress.com/ http://www.stopcommoncoreny.com/ http://www.theblaze.com/stories/2014/04/09/why-three-teachers-are-taking-a-stand-against-common-core-we-need-to-remove-it/
and there are plenty more revealing articles.